Alt+Tab on screen display not disappearing

[Colin Walters]

On Wed, 2013-02-20 at 07:44 -0500, Ryan Lerch wrote:
> On 02/12/2013 08:12 PM, Ankur Sinha wrote:
> 
> > On Tue, 2013-02-12 at 11:15 -0500, Ryan Lerch wrote:
> > > anyone else experiencing this issue?
> > Yep. But as Michael said, I can't reproduce it on demand. It randomly
> > happens. Any logs I could look into the next time it happens?
> > 
> > 
> This just happened to me again.
> 
> Here is the tailend of the ~/.cache/gdm/session.log

We have quite a variety of bugs of this form around focus handling.
It's a tricky problem domain, and hard to test.  If you can figure out
how to reproduce the problems, that helps a lot.

If it feels like it happens "randomly", most likely it's triggered by a
concurrent event (for example, a message tray notification appears while
you have alt-tab up).